Low-temperature storage tank vault low-temperature pipeline sleeve cold insulating structure and mounting method thereof

Abstract

The invention discloses a low-temperature storage tank vault low-temperature pipeline sleeve cold insulating structure and a mounting method thereof. The low-temperature storage tank vault low-temperature pipeline sleeve cold insulating structure comprises an outer tank vault, an inner tank ceiling, and a low-temperature pipeline which is arranged between the outer tank vault and the inner tank ceiling in a penetrating manner; a vault sleeve is arranged at the position at the upper end of the low-temperature pipeline; a ceiling sleeve is arranged at the lower end of the low-temperature pipeline; a supporting plate is arranged above the ceiling sleeve; an inner PIR precast block is arranged at the position, between the top end of the vault sleeve and the supporting plate, outside the low-temperature pipeline in a sleeving manner; an outer PIR precast block is arranged between the vault sleeve and the inner PIR precast block; the low-temperature storage tank vault low-temperature pipeline sleeve cold insulating structure and the mounting method thereof have the beneficial effects that the structure is good in cold insulating effect and convenient to mount; the problem of leakage caused by settlement in a long-term operating process of the structure that the sleeve is filled with conventional glass wool is effectively solved; meanwhile, the problem that the structure that an in-situ foamed insulating material is used in the sleeve is also solved; and the safety and the reliability of a local structure are improved.

Description

technical field [0001] The invention relates to the technical field of large-scale low-temperature storage tanks, in particular to a cold-preservation structure of a low-temperature pipeline sleeve on a vault of a low-temperature storage tank and an installation method thereof. Background technique [0002] More and more large-scale low-temperature storage tanks are used in the energy and petrochemical industries. These large-scale low-temperature storage tanks mostly adopt a vertical cylindrical structure at atmospheric pressure, and the inlet and outlet of the pipelines are all set on the top of the tank. With the use of the storage tank, the traditional glass wool-filled sleeve structure will settle during long-term operation due to its own gravity and the non-rebound of its own material, which will lead to cold leakage. foam insulation material structure and installed on the outer tank vault as a whole, but for double-layer metal low-temperature storage tanks, the sleeve...

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Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a cold storage structure and installation method for the low-temperature pipeline sleeve of the vault of the low-temperature storage tank, which is used to solve the problem of heat insulation leakage and cold of the low-temperature pipeline sleeve of the vault of the large low-temperature storage tank. Construction and installation problems

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